In the 2001/02 academic year, there were 503,000 children, including 243,600 girls, or 48.4 per cent, at the primary level (preparatory, first to third grades).
En el año escolar 2001/2002 en el nivel primario (los grados preparatorios 1 a 3) estudiaban 503.000 niños, de ellos 243.600 niñas (el 48,4% del total).